A stock truck can see 1250.
The only gauge I know of that could display both banks would be the Edge Insight digital display. It reads some data off the OBDII port and you can add EGT gauges to it. It is set up so you can daiychain multiple things into the back of it. You may want to check with Edge to be sure it can dsplay 2 EGT's but I wouldn't see why not. It is a pretty slick unit, I like it for everything but the boost which reads from the map sensor. With the TS chip the map sensor readout was modified and didn't show actual. So I got a mechanical gauge for that. With the current Banks chip it reads very close. Map sensor will only show 22psi max.
Never had a probe break, they are pretty robust.